Though it's lost some relevance to the sands of time, it's still a worthwhile read. The book is about as fun as any book in this genre could possibly be. The research is thorough and broad while the accompanying case studies are memorable. By design, the book will have you rethinking your own discipline while more carefully analyzing the lives of those whose lifestyles seem unsustainable. Is the message clear from the get-go? Yes, but the backing facts, figures, and stories make for a wholesome read.